Drift diffusion model

…of a visual stimulus with a given drift velocity (v) and diffusion

…The stochastic drift diffusion model explains how such integration leads to the observed variability in RT, but what explains RT variability in a task where there is no ambiguity in what action will be rewarded?We trained recurrent neural network models to perform a delayed memory

…and 3) a lack of formal cognitive models to explain cognition. In this work, we used the drift-diffusion model to decompose perceptual decision making to underlying latent variables to explain be

…(signal detection theory, drift diffusion model) and electrophysiological (time-frequency decomposition) analyses to explore the impact that prior information has on perceptual decision. To this

…Our method models trial-to-trial state switches with a hidden Markov model (HMM)

Human decisions are often made in a social context, thereby relying on the ability to anticipate and predict others’ behavior. In such contexts, gaze is an important communicative signal which can inform individuals about others’ intentions, goals and upcoming decisions. Gaze has been shown to affect various cognitive processes and states in human interactions. Nevertheless, the effect of gaze on social decision-making is still understudied. Here, we investigated the effect of mutual gaze exhibited by a humanoid agent in an interactive setup. Participants (N=40) played a strategic game against

Cognitive models of timing often include a pacemaker analogue whose ticks are accumulated to form an internal representation of time, and a threshold that determines when a target duration has elapsed. However, clear EEG manifestations of these abstract components have not yet been identified. We measured the EEG of subjects while they performed a temporal bisection task in which they were requested to categorize visual stimuli as short or long in duration. We report an ERP component whose amplitude depends monotonically on the stimulus duration. The relation of the ERP amplitude and stimulus

Interval timing is a fundamental component action, and is susceptible to motor-related temporal distortions. Previous studies have shown that movement biases temporal estimates, but have primarily considered self-modulated movement only. However, real-world encounters often include situations in which movement is restricted or perturbed by environmental factors. In the following experiments, we introduced viscous movement environments to externally modulate movement and investigated the resulting effects on temporal perception. In two separate tasks, participants timed auditory intervals while